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Heavy Duty Engine Oils

Diesel engine oils for on- and off-highway fleets — full synthetic and synthetic blend CK-4 coverage plus classic monograde formulations for legacy equipment.

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Full Synthetic
Synthetic Blend
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ISO 9001-Managed Supply · North American Sourcing

All Everstead heavy duty oils meet or exceed API CK-4 and OEM specifications. SDS, PDS, and COA documentation available on every SKU. Private-label programs available on qualifying volumes.

Heavy Duty Full Synthetic
3 Products

Full synthetic CK-4 heavy-duty diesel engine oils for severe on- and off-highway service. Provides exceptional soot control, oxidation stability, and extended drain capability.

15W-40
In Stock
Heavy Duty Engine Oil
APICK-4 / CJ-4
UseLine-haul and regional-haul trucks and buses requiring 15W-40 CK-4.
bulk
275
55
5
SDS/PDS
5W-40
In Stock
Heavy Duty Engine Oil
APICK-4 / CJ-4
UseOn-highway heavy-duty trucks and tractors requiring API CK-4 or earlier categories.
bulk
275
55
5
SDS/PDS
15W-40
In Stock
Heavy Duty Engine Oil
APICK-4 / CJ-4
UseOn-highway and off-highway diesel engines requiring CK-4 performance.
1
55
275
SDS/PDS
Heavy Duty Synthetic Blend
3 Products

Workhorse CK-4 synthetic blend diesel engine oils for mixed fleets. Delivers excellent protection at an economy price point for everyday heavy-duty applications.

10W-30
In Stock
Heavy Duty Engine Oil
APICK-4 / CJ-4
UseModern low-emission diesel engines requiring 10W-30 CK-4.
bulk
275
55
5
SDS/PDS
10W-40
In Stock
Heavy Duty Engine Oil
APICK-4 / CJ-4
UseHigh-load, high-temperature diesel applications requiring 10W-40.
bulk
275
55
5
SDS/PDS
15W-40
In Stock
Heavy Duty Engine Oil
APICK-4 / CJ-4
UseMixed fleets requiring robust 15W-40 CK-4 performance.
bulk
275
55
5
SDS/PDS
Heavy Duty Monograde
5 Products

Classic monograde heavy-duty engine oils for older engines, legacy equipment, and warm climate applications. Provides reliable lubrication where single-grade oils are specified.

10
In Stock
Heavy Duty Engine Oil
APICF-2 / CF
UseOlder diesel and gasoline engines where SAE 10 engine oil is specified.
bulk
55
5
SDS/PDS
20
In Stock
Heavy Duty Engine Oil
APICF-2 / CF
UseLegacy diesel and gasoline engines calling for SAE 20 engine oil.
bulk
55
5
SDS/PDS
30
In Stock
Heavy Duty Engine Oil
APICF-2 / CF
UseOlder diesel engines without exhaust aftertreatment requiring SAE 30.
bulk
55
5
1
SDS/PDS
40
In Stock
Heavy Duty Engine Oil
APICF-2 / CF
UseOlder, non-emission-controlled diesel engines requiring SAE 40.
bulk
55
5
1
SDS/PDS
50
In Stock
Heavy Duty Engine Oil
APICF-2 / CF
UseOlder heavy-duty diesel engines requiring SAE 50 engine oil.
bulk
55
5
SDS/PDS